arm64: dts: rockchip: describe mcu eeprom cells on
From: Heiko Stuebner <heiko@...> Date: Sun, 6 Apr 2025 16:43:05 +0200
Commit-Message
The MCU's eeprom contains the unit's serial and a number of slots for mac-addresses. As the MCU seems to be used in different devices, up to 8 mac addresses can live there and the unused slots are actually initialized with empty mac-address strings like 00:00:00:00:05:09 . Interestingly on the TS-433, the PCIe ethernet adapter brings its own memory to hold its mac, and the gmac0 is supposed to get its mac from the second mac-slot, while the first one stays empty. Signed-off-by: Heiko Stuebner <heiko@...>
Patch-Comment
.../boot/dts/rockchip/rk3568-qnap-ts433.dts | 62 +++++++++++++++++++ 1 file changed, 62 insertions(+)
Statistics
- 62 lines added
- 0 lines removed
Changes
-------------- arch/arm64/boot/dts/rockchip/rk3568-qnap-ts433.dts --------------
index 5656554ca284..224db87973b2 100644
@@ -655,6 +655,68 @@ fan: fan-0 {
#cooling-cells = <2>;
cooling-levels = <0 64 89 128 166 204 221 238>;
};
+
+ nvmem-layout {
+ compatible = "fixed-layout";
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ serial-number@0 {
+ reg = <0x0 0x13>;
+ };
+
+ ext-port@22 {
+ reg = <0x22 0x2>;
+ };
+
+ mac0: mac@24 {
+ compatible = "mac-base";
+ reg = <0x24 0x11>;
+ #nvmem-cell-cells = <1>;
+ };
+
+ mac1: mac@35 {
+ compatible = "mac-base";
+ reg = <0x35 0x11>;
+ #nvmem-cell-cells = <1>;
+ };
+
+ mac2: mac@46 {
+ compatible = "mac-base";
+ reg = <0x46 0x11>;
+ #nvmem-cell-cells = <1>;
+ };
+
+ mac3: mac@57 {
+ compatible = "mac-base";
+ reg = <0x57 0x11>;
+ #nvmem-cell-cells = <1>;
+ };
+
+ mac4: mac@68 {
+ compatible = "mac-base";
+ reg = <0x68 0x11>;
+ #nvmem-cell-cells = <1>;
+ };
+
+ mac5: mac@79 {
+ compatible = "mac-base";
+ reg = <0x79 0x11>;
+ #nvmem-cell-cells = <1>;
+ };
+
+ mac6: mac@8a {
+ compatible = "mac-base";
+ reg = <0x8a 0x11>;
+ #nvmem-cell-cells = <1>;
+ };
+
+ mac7: mac@9b {
+ compatible = "mac-base";
+ reg = <0x9b 0x11>;
+ #nvmem-cell-cells = <1>;
+ };
+ };
};
};